Chair support or prop.



PATBNTED DEC. 10, 1907.

A. ROTHFUGHS & G. BLISS.

CHAIR SUPPORT OR PROP.

APPLIOATIONI'ILED MAY 6.1907.

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No. 873,612. PATENTEDDEC. 10, L907.

' A ROTHPUUHS & G BLISS CHAIR SUPPORT OR PROP.

APPLICATION FILED MAY 6. 1907 2 SHEETS-SHEET 2.

AUGUST RUTHFUBHE &: V60.

' Er uTT LE SL155 /zam UNTT ED STATES PATENT orrron CHAIR SUPPORT OR PROP.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed May 6.1907. Serial No. 372,106.

To all whom it may concern:

Be it known that we, AUeUs'r ROTHIFUGHS and GoTrLE BLrss, citizens of the United States, residing at Hammond, in the county of Lake and State of Indiana, have invented certain new and useful Improvements in Chair Supports or Props; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in chair supports or props.

The object of the invention is to provide a device of this character adapted to be pivotally connected to the back of a chair, whereby when the same is tilted backwards, the prop or support will swing into an operative position and prevent the chair from falling over backwards.

A further object is to provide a chair prop or support which, when not in use, is adapted to be hidden from view in a recess provided for the same in the back of the chair legs and seat.

ith these objects in view, the invention consists of certain novel features of construction, combination and arrangements of parts as will be more fully described and particularly pointed out in the appended claims.

In the'accompanying drawings, Figure 1 is a perspective view of a high-chair, showing the application of the invention thereto in an operative position; Fig. 2 is a similar view of an ordinary chair showing the device applied thereto and in an operative position Fig. 3 is a rear view of the device applied to a high chair, the device being here shown in an inoperative position; Fig. 4 is a detail vertical sectional view through the upper end of the extended portion of one of the rear legs of the chair, showing the manner in which the support is pivotally connected thereto; Fig. 5 is a similar view through the rear edge of the seat and the cross bar of the support and Fig. 6 is a cross sectional view through one of the rear legs of the chair, showing the arrangement of one of the legs of the support therein when the latter is in a folded position.

Referring more particularly to the drawings, 1 denotes the chair support, consisting of a pair of vertically disposed legs, 2, which are connected together by a cross bar, 3. The prop or support, 1, is adapted to be applied to any form of chair, and in Fig. 1 of the drawings is shown as being connected to a chair is also formed a transversely disposed groove or channel, 5, said channel being continued at the ends of the seat and connecting at its opposite ends with the channels, 4, formed in the leg. At the upper ends of the grooves 4 in the extended portion of the chair legs is formed an inwardly projecting recess, 6, in which is secured a curved wear plate, 7, said plate being fastened by screws or other suitable fastening devices, as shown.

The legs 2 of the support or prop are pivotally connected near their upper ends by pivotbolts or pins 9 to the extended upper portions of said chair legs, within the grooves orchannels, 4, thereof, said upper ends of said legs being extended. beyond their pivotal points, and adapted to closely engage and bear against the wear-plates 7, when the support is swung outwardly to operative position. Each of the pivot-bolts9, has its ends secured in the lateralportions of each of two segmental clips 10, applied to the front portions of the upper extended portions of said rear chair legs, and forming braces or strengthening plates at these points.

The upper ends of the legs 2 of the support are loosely mounted on the pivot bolt or pin 9, so that when the chair is tilted backwards the support will readily swing out of the grooves or channels, 4 and5, formed in the chair legs and seat, thereby forming an inclined support or prop, the lower ends of which will be engaged with the floor, thus limiting the backward tilting movement of the chair and preventing the same from falling backwards. The outward swing movement of the support, 1, is limited by the engagement of the extended upper ends of the legs, 2, with the lower portion of the wear plate 7 in the recess 6, as clearly shown in Fig. 4 of the drawings. When the chair is again brought to its normal position, the support will readily swing back into engagement with the grooves or'channels 4-5 formed in the ichair legs and seat. The shape of the legs 2 of the support corresponds'with the shape of the chair legs, and the grooves or channels therein, so that the legs 2 readily enter the channel, While the cross bar 3 enters the groove or channel, 5, in the rear edge of the seat, thereby practically hiding the support from view from the front or side of the chair. The legs 2 may be of any desired length with respect to the height of the chair, the length of said legs of the support determining the distance the chair will be permitted to tilt back before being caught and supported by the prop, 1.

The device While being primarily intended as a safety appliance to prevent children from pushing their chairs backwards, it is obvious that the device may be used as a prop for supporting chairs in an inclined or reclining position.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention may be readily understood Without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to Without departing from the principle or sacrificing any of the advantages of this invention as defined. in the appended claims.

Having thus fully described our invention,

what we claim as new, and desire to secure by Letters-Patent, is:

1. A chair support or prop, comprising a pair of vertically disposed legs, a cross bar connecting said legs, pivot bolts adapted to be engaged with the upper ends of said legs to pivotally connect the same in a groove or channel formed in the rear side of the chair leg, and a wear plate arranged at the upper end of said groove or channel in which the upper ends of the legs of the support are engaged when the latter is swung to an operative position, substantially as described.

2. A chair having formed in the rear side of its supporting legs longitudinally disposed grooves or channels having at their upper ends curved recesses, and a groove or channel formed in the rear edge of the chair seat to connect with the grooves in the chair legs, a Wear plate arranged in the curved recesses at the upper end of said leg grooves, a pivot bolt or pin arranged across the groove or channel in the chair legs adjacent to the recess formed therein, a prop or support comprising a pair of vertically disposed supporting legs pivotally mounted at their upper ends on said pivot pin and provided. on their upper ends with extensions which project beyond said pivotal connection and engage said wear plates, a strengthening band or clip adapted to be engaged with the outer side of the chair legs and to receive the ends of the pivot bolt'or pin therein, and a cross bar to connect the legs of said support, substantially as describedv In testimony whereof we have hereunto set our hand in presence of two subscribing Witnesses.

AUGUST ROTHFUGHS. GOTTLE BLISS. Witnesses:

MARTIN F. SoHRoEDER,

)HAnLEs E. MARTIN. 

